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Jurnal Penelitian Pendidikan IPA (JPPIPA)
Published by Universitas Mataram
ISSN : 24602582     EISSN : 2407795X     DOI : -
Core Subject : Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics
Science Educational Research Journal is international open access, published by Science Master Program of Science Education Graduate Program University of Mataram, contains scientific articles both in the form of research results and literature review that includes science, technology and teaching in the field of science. The Science Educational Research Journal is published twice in a year in January and July editions. The editors receive writing in Indonesian or English, either from the university or from outside the university.
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Articles 107 Documents
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Search results for , issue "Vol 12 No 2 (2026)" : 107 Documents clear
Innovation in Acid-Base Learning (PasamBa) through Ecoprint Batik as a Contextual Strategy to Improve Understanding of Fashion Design Students in SMK Meriza Faradilla; Miswatul Hasanah
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.12721

Abstract

This study aims to test the effectiveness of PAsamBa (Acid-Base Learning) learning innovation integrated with ecoprint batik practice in improving conceptual understanding and vocational skills of eleventh-grade students in the Fashion Design expertise program at Vocational High Schools (SMK). The acid-base concept has direct relevance to textile skill processes such as mordanting, color fixation, and pH stability of natural dyes, which are important in sustainable fabric dyeing. The study used a one-group pretest-posttest design involving 73 students from three vocational high schools in Aceh. The instruments included a 20-item acid-base concept understanding test (α = 0.86) and a vocational skills rubric that assessed procedural accuracy, color stability, and ecoprint pattern quality. The results showed a significant increase (t( 72) = 12.86; p < 0.001), with the average score increasing from 43.69 to 80.53 and an N-gain value of 0.67 (medium-high category, approaching high). Students' vocational skills also improved, with an average process score of 3.49 and a product score of 3.41 (scale 4). These results demonstrate that the PAsamBa–Ecoprint approach effectively integrates chemistry learning with contextual textile practices to strengthen students' conceptual understanding and readiness for the creative fashion industry.
Cloning, expression and purification of a gene encoding CFP-10 and ESAT-6 protein of Mycobacterium tuberculosis in pET SUMO plasmids as Vaccine Candidates Fihiruddin Fihiruddin; Nurul Inayati; Lalu Srigede; Siti Zaetun; Lalu Unsunnhidal; Muhammad Nazil Shaleh
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.12724

Abstract

The Bacillus Calmette-Guerin vaccine did not show consistent results in preventing tuberculosis, with an effectiveness ranging from 0% to 80%. More effective proteins are needed as vaccine candidates to eliminate tuberculosis. Culture filtrate proteins 10-kDa(CFP-10) and Excretory Antigen Target 6-kDa(ESAT-6) demonstrated very strong antigenicity against T and B cells. These proteins are secreted during the early phase of infection and could potentially be used for vaccine candidates. This study aims to clone and express the CFP-10 and ESAT-6 proteins on the pET SUMO Plasmid. PCR with specific primers was used to amplify the genes encoding CFP-10 and ESAT-6 proteins. The PCR products were cloned into pET SUMO plasmids for transformation into competent cells E.coli BL21(DE3). Recombinant protein expression was induced in LB medium using 1 mM IPTG. The yield of recombinant proteins was visualized by SDS-PAGE and western blotting using an Anti-HisTaq Antibody. PCR results showed the target gene sizes to be 304 bp (CFP-10) and 291 bp (ESAT-6). SDS-PAGE and Western blotting revealed proteins at 22kDa (CFP-10) and 18kDa (ESAT-6). The genes encoding the CFP-10 and ESAT-6 proteins of M. tuberculosis have been successfully cloned into the pET SUMO plasmid and expressed in E. coli BL21(DE3) with molecular weights corresponding to the target genes.
Acute Toxicity Nanoemultion of Ethanol Extract of Clove Leaves (Syzygium aromaticum L.) Muthmainah Tuldjanah; Putri Natalia Laurenza Ladjeba; Rezky Yanuarty; Ayu Wuladari; Joni Tandi; Muaadzatul Izzah Sudarman
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.12783

Abstract

Clove leaves have been widely used as traditional medicine. Clove leaves are rich in saponins, flavonoids, tannins, sterols, and essential oils. To improve the function of clove leaves, one of them is by reducing the sample size into nanoemulsion form. Nanoemulsions were prepared using the sonication method and exhibited an average droplet size of 13.3 nm. The purpose of this study was to determine the toxic properties, the dose that can cause toxic effects, and the LD50 value of nanoemulsion administration of ethanol extract of clove leaves. This study used 25 male white rats which were divided into five groups, namely a control group (nanoemulsion base) and four treatment groups receiving oral doses of 5, 50, 300, and 2000 mg/kg BW. The LD50 value was calculated using AOT425 StatPgm in accordance with OECD TG 425 (Up and Down Procedure). Mortality summary: control 0/5; 5 mg/kg BW 0/5; 50 mg/kg BW 0/5; 300 mg/kg BW 0/5; 2000 mg/kg BW 5/5. The results showed an LD50 of 798.5 mg/kg BW and, based on the GHS, it falls under Acute Toxicity (Oral) Category 4 (300–2000 mg/kg BW). Clinical signs such as piloerection, grooming, and weakness appeared mainly in the early observation phase (from 30 minutes to 4/8/12 hours) in each dose group and were reversible.
Development of “Hydro Pure Pro (HPP)” Water Filter Technology to Reduce Iron (Fe) and TDS Levels in Drilled Well Water Husnul Hatimah; Dahlia Rosma Indah; Nurwahidah; Muhammad Fauzi Zulkarnaen
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13150

Abstract

High levels of iron (Fe) and total dissolved solids (TDS) in well water remain a major groundwater quality problem in Indonesia. This study aimed to develop and evaluate the effectiveness of a Hydro Pure Pro (HPP) water filtration system based on a multi-stage aeration–filtration process to reduce Fe and TDS concentrations. The HPP system combines activated carbon, zeolite, silica sand, mountain sand, and a reverse osmosis (RO) unit as final treatment, with a focus on assessing the effects of activated carbon raw materials (coconut shell and wood) and carbon bed thickness on adsorption performance. The results showed that coconut shell activated carbon exhibited superior performance, reducing Fe from 0.606 mg/L to 0.135 mg/L (77.72%) and TDS from 540 mg/L to 390 mg/L (27.8%) at a thickness of 20 cm. Increasing the carbon thickness to 30 cm improved removal efficiency to 79.9% for Fe and 28.7% for TDS, after which performance tended to stabilize. This improvement is attributed to the higher specific surface area and well-developed microporous structure of coconut shell activated carbon, which enhances Fe²⁺ adsorption through ion exchange and surface functional group interactions. In conclusion, the HPP system demonstrates high effectiveness and economic feasibility, making it a promising filtration technology for improving the quality of borehole water in community settings.
Cowpea–Plantain Composite Flour: An Educational Approach to Dietary Intervention for Blood Pressure Management Zulfiana Dewi; Sajiman Sajiman
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13380

Abstract

Hypertension is a major risk factor for cardiovascular diseases and remains highly prevalent in Indonesia, particularly in South Kalimantan. This study aims to formulate a cowpea–plantain composite flour as a functional food with synergistic potential for blood pressure regulation. Composite flours were produced by processing raw materials through drying, milling, and sieving into formulations ranging from 10:90 to 90:10. Sensory attributes, including color, aroma, texture, and taste, were evaluated by 30 panelists, and the best formulation was determined using the De Garmo effectiveness index. Proximate composition, mineral content (potassium and sodium), and amino acid profiles were analyzed in an accredited laboratory. Sensory evaluation revealed that higher proportions of cowpea decreased taste acceptability, whereas plantain improved organoleptic characteristics. The optimal formulation was identified as KTPR8020 (80% cowpea : 20% plantain), which achieved a balanced profile of texture, aroma, and taste. Nutritional analysis indicated that cowpea increased protein (17.50%) and fat (1.56%) contents, while plantain contributed mainly to carbohydrates. The KTPR8020 formulation contained 5.98 mg/100 g potassium with a K/Na ratio of 7.1, supporting potassium-induced natriuresis. Amino acid profiling showed dominance of lysine, leucine, isoleucine, valine, and arginine, which are known precursors of bioactive peptides with ACE-inhibitory activity
Enhancing Nutritional Education Through the Development of Toddler Biscuits: A Focus on Mung Bean Flour and Patin Fish Paste as Effective Nutritional Interventions Against Malnutrition Sajiman Sajiman; Zulfiana Dewi
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13381

Abstract

This study aims to formulate toddler biscuits from mung bean flour and patin fish paste and to analyze their sensory quality, proximate content, amino acid profile, and fatty acid profile. Biscuits were prepared with varying ratios of mung bean flour and patin fish paste (10:90 to 90:10). Sensory quality tests were conducted using a hedonic scale scoring method with 30 trained panelists. The best formulation was selected using the De-Garmo test. Proximate analysis, amino acid profile, and fatty acid profile were performed on the best formulation and compared with standard toddler PMT biscuits. The KHIP5050 formulation (50% mung bean flour: 50% patin fish paste) was determined to be the best treatment based on the highest total De-Garmo score (3.33). Nutritionally, KHIP5050 biscuits had higher energy (479.45 kcal), protein (16.81%), and fat (27.77%) compared to standard PMT biscuits. The fatty acid profile was superior, with higher levels of MUFA and PUFA, and the presence of EPA, DHA, and AA, which were not detected in the standard biscuits. Toddler biscuits based on mung bean flour and patin fish paste, especially the KHIP5050 formulation, have significant potential as a nutrient-dense food product to address malnutrition in toddlers.
Development of E-Modules Based on Problem Based Learning (PBL) on the Circulatory System Material for Grade XI Senior High School to Improve Critical and Collaborative Thinking Skills Megawati; Fitri Arsih; Lufri; Elsa Yunuarti
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13422

Abstract

21st century education demands students to have critical thinking and collaboration skills. However, observations in class XI of SMAN 2 Sungai Penuh revealed low levels of these skills due to the lack of relevant learning media. Therefore, PBL-based E-modules are needed. This study aims to produce a valid, practical, and effective PBL-based E-module on the circulatory system material. This research employed Research and Development (R&D) using the ADDIE model, combined with a Quasi-Experimental Design (Pretest-Posttest Control Group Design) for effectiveness testing. The research subjects were 72 eleventh-grade students of SMAN 2 Sungai Penuh, divided into an experimental class (n = 36) and a control class (n = 36), selected through cluster random sampling. Instruments included validation sheets, practicality questionnaires, critical thinking tests, and collaboration observation sheets. Data analysis used descriptive statistics for validity and practicality, while effectiveness was analyzed using N-Gain scores and Independent Sample T-Test with SPSS 26 at α=0.05. Results showed validity of 95.49% (very valid), teacher practicality of 100% and student practicality of 92.89% (very practical). Effectiveness analysis revealed significant differences between groups (t= 4.523, p < 0.001) with experimental class N-Gain of 0.72 (high) compared to control class N-Gain of 0.45 (medium). Thus, the PBL-based E-module is valid, practical, and effective in improving students' critical thinking and collaboration skills.
Developing Interactive Multimedia for Informatics Learning to Support Quality Education (SDG 4) Vera Irma Delianti; Winda Agustiarmi; Ganefri; Asmar Yulastri; Elfizon
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13807

Abstract

The rapid development of digital technology requires learning approaches that integrate interactive media to enhance student engagement and conceptual understanding. However, Informatics learning in many senior high schools is still dominated by teacher-centered instruction, which limits students’ opportunities to explore concepts actively. Therefore, innovative digital learning media are needed to support more interactive and student-centered learning environments. This study aims to develop and evaluate interactive multimedia for learning basic computer operations and software functions in Grade 10 Informatics. The research employed a Research and Development (R&D) approach using the Instructional Development Institute (IDI) model, which applies a systematic instructional design through three stages: define, develop, and evaluate. The study involved 30 tenth-grade students and two Informatics teachers at SMA Negeri 2 Bukittinggi, Indonesia. Data were collected through expert validation sheets, teacher and student response questionnaires, and learning outcome tests using a one-group pretest–posttest design. The results show that the multimedia achieved very high validity (4.62) and excellent practicality (90.6%). The effectiveness test produced an N-gain score of 0.60, indicating a moderate level of effectiveness. These findings suggest that the multimedia is valid, practical, and moderately effective for supporting digital learning aligned with Sustainable Development Goal 4 (Quality Education).
Understanding Sustainability Through Socio-Ecological Trade-Offs: Field Evidence of Traditional Oil Mining and Groundwater Quality Toward the SDGs Ifan Deffinika; Alfi Sahrina; Dicky Arinta; Inanditya Widayana Putri; Adelisa Rizki Zaharani; Novi Silvia
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13828

Abstract

This study explores human-nature relationships through a socio-ecological perspective, focusing on traditional oil mining in Wonocolo, Indonesia, widely known as “Little Texas”. The analysis was conducted through field observations, in-depth interviews with 40 local stakeholders, and laboratory analysis of 40 groundwater samples collected from community dug wells. Results show residents rely on dug wells, piped-water, and artesian springs, with significant seasonal scarcity. Water quality assessment indicates that most physical parameters remain within acceptable limits (pH 6.40–8.00; electrical conductivity 0.43–2.26 mS/cm; temperature 22.00–31.00 °C). However, localized elevations in electrical conductivity at several sampling points suggest potential hydrochemical alterations in the shallow aquifer that may be associated with traditional oil extraction activities, particularly in a karst-dominated landscape. Although direct measurements of TPH and Oil & Grease were not available for a comprehensive ecotoxicological assessment, these findings highlight a critical socio-ecological trade-off in which short-term economic benefits from oil production may increasingly pressure long-term groundwater security. The study concludes that managing these interdependencies requires participatory governance and waste-stream regulation tailored to the karst landscape. Integrated policies are essential to ensure that economic benefits do not undermine the community's fundamental access to clean water, aligning with SDG 6 and SDG 12.
Application of a Levenberg–Marquardt-Based Backpropagation Neural Network for Rainfall Prediction Using a Single Weather Station Wahyu Sukmananda; Irwandi; Edwar Iswardy; Kadarsah; Yopi Ilhamsyah; Yuwaldi Away; Chakrit Chotamongsak; Dedy Ardana
Jurnal Penelitian Pendidikan IPA Vol 12 No 2 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i2.13845

Abstract

This study aims to develop an accurate monthly rainfall prediction model for Sabang City, Indonesia, to support agriculture, disaster mitigation, and water resource management in coastal regions with complex climatic conditions. An Artificial Neural Network (ANN) trained using the Levenberg–Marquardt (LM) algorithm was employed, combining the Gradient Descent and the Gauss–Newton methods to enhance convergence speed and training stability. Meteorological data from 2015–2024, including temperature, humidity, air pressure, sunshine duration, wind direction, wind speed, and rainfall, were obtained from the Maimun Saleh Meteorological Station. Model performance was assessed using Mean Squared Error (MSE), Root Mean Squared Error (RMSE), Mean Absolute Error (MAE), Mean Absolute Percentage Error (MAPE), and the coefficient of determination (R²). The optimal architecture consisted of a single hidden layer with 25 neurons, producing an MSE of 955.84 mm², an RMSE of 30.91 mm, an MAE of 23.06 mm, a MAPE of 34.8%, and an R² of 0.93. These results indicate that the ANN-LM model effectively captures nonlinear climatic relationships and seasonal rainfall variability. The MAPE value falls within the acceptable range reported in forecasting literature, demonstrating practical reliability. Overall, the ANN-LM approach outperformed conventional backpropagation in accuracy and training efficiency, indicating its suitability for rainfall prediction in coastal areas.

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